The World's Most Expensive Diamonds

Wittelsbach Diamond, December 2008


This is the Wittelsbach Diamond,

most expensive diamond in world history. In December 2008 this stone was sold for U.S. $ 23.4 Million at Christie's in London, making it the world's most expensive diamond.

Total carat really special, 35-karat, and blue-gray color. This truly historic diamond has been owned by King Philip IV of Spain since the year 1664, a period in which the kingdom of Spain to conquer the world.

A perfect diamond valued 4C: Carat, Clarity, Color, Cut. English name diamond, Diamond, derived from Greek, Adamas, which means it can not be destroyed, because its hardness is perfect.

Diamond is considered the world's hardest materials, with Mohs hardness scale of 10, aka perfect. So there was no material harder than diamond in the world.

Or is it?

Well, scientists have long found that 58% of material harder than diamond. Super material called mineral Lonsdaleite. This material can be formed naturally or built in a special laboratory.

In nature, a super hard material is formed by a devastating meteor collision that fell to earth like in the Antarctic, Meteor Crater in Arizona and the location of a giant in the Tunguska meteorite fall of Russia.

And in February 2009, scientists from the University of Nevada and University of Shanghai has created a material that reached 80% Lonsdaleite harder than diamond

Diamond no longer nature's hardest material, Newscientist.com

List of famous diamonds, Wikipedia

Tunguska Event, Wikipedia

by : faiz
source : www.imperiumindonesia.blogspot.com